Automatic information modification apparatus for a data processing system





1. IN COMBINATION, A DATA STORAGE UNIT FOR STORING A PLURALITY OF DATA ITEMS IN A CORRESPONDING PLURALITY OF STORAGE LOCATIONS, A REGISTER HAVING FIRST AND SECOND SECTIONS, MEANS FOR STORING AN IDENTIFICATION OF ONE OF SAID STORAGE LOCATIONS IN SAID FIRST SECTION, A DATA PROCESSING UNIT FOR PERFORMING OPERATIONS ON DATA ITEMS RECEIVED THEREBY, MEANS RESPONSIVE TO SAID IDENTIFICATION FOR TRANSFERRING A REPRESENTATION OF THE DATA ITEM IN SAID ONE STORAGE LOCATION TO SAID DATA PROCESSING UNIT, AND MEANS RESPONSIVE TO THE CONTENTS OF SAID SECOND SECTION FOR MODIFYING THE CONTENTS OF SAID ONE LOCATION, FOLLOWING TRNASFER OF SAID REPRESENTATION TO SAID DATA PROCESSING UNIT AND INDEPENDENT OF THE PERFORMANCE OF AN OPERATION ON THE DATA ITEM BY SAID DATA PROCESSING UNIT. 